You can start and stop animation by clicking in the window.

This animation will probably take a while to load. When it does, a room-like scene will appear. Click in the window, and Fuzz will magically appear in the room.

After the animation starts, watch for a bit to see what actions Fuzz currently performs. (Her repertoire of actions will grow as the applet develops). Every once in awhile, she will rest. To reinforce a behavior, press the “r” key. To punish a behavior, press the “p” key. If you reinforce resting, she will spend more time resting. If you punish resting, she will spend more time acting. If you reinforce or punish a particular action, the likelihood of the action occurring again will either increase or decrease. Also, Fuzz can “forget” what she has learned. If you stop teaching Fuzz, she will gradually go back to a baseline state in which all actions are equally likely.